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auixpvar.h revision 1.2 
      1 /* $NetBSD: auixpvar.h,v 1.2 2005/01/12 00:28:03 reinoud Exp $*/
      2 
      3 /*
      4  * Copyright (c) 2004, 2005 Reinoud Zandijk <reinoud (at) netbsd.org>
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. The name of the author may not be used to endorse or promote products
     13  *    derived from this software without specific prior written permission.
     14  * 3. All advertising materials mentioning features or use of this software
     15  *    must display the following acknowledgement:
     16  *	This product includes software developed by the NetBSD
     17  *	Foundation, Inc. and its contributors.
     18  * 4. Neither the name of The NetBSD Foundation nor the names of its
     19  *    contributors may be used to endorse or promote products derived
     20  *    from this software without specific prior written permission.
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     25  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     26  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     27  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     28  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     29  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     30  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     32  * SUCH DAMAGE.
     33  */
     34 
     35 
     36 /*
     37  * NetBSD audio driver for ATI IXP-{150,200,...} audio driver hardware.
     38  */
     39 
     40 #define DMA_DESC_CHAIN	255
     41 
     42 
     43 /* audio format structure describing our hardware capabilities */
     44 /* XXX min and max sample rates are for AD1888 codec XXX */
     45 #define AUIXP_NFORMATS 6
     46 
     47 
     48 #define AUIXP_MINRATE  7000
     49 #define AUIXP_MAXRATE 48000
     50 
     51 
     52 /* current AC'97 driver only supports SPDIF outputting channel 3&4 i.e. STEREO */
     53 static const struct audio_format auixp_formats[AUIXP_NFORMATS] = {
     54 	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_SLINEAR_LE, 16, 16, 2, AUFMT_STEREO, 0, {7000, 48000}},
     55 	{NULL, AUMODE_PLAY | AUMODE_RECORD, AUDIO_ENCODING_SLINEAR_LE, 32, 32, 2, AUFMT_STEREO, 0, {7000, 48000}},
     56 	{NULL, AUMODE_PLAY, AUDIO_ENCODING_SLINEAR_LE, 16, 16, 4, AUFMT_SURROUND4, 0, {7000, 48000}},
     57 	{NULL, AUMODE_PLAY, AUDIO_ENCODING_SLINEAR_LE, 32, 32, 4, AUFMT_SURROUND4, 0, {7000, 48000}},
     58 	{NULL, AUMODE_PLAY, AUDIO_ENCODING_SLINEAR_LE, 16, 16, 6, AUFMT_DOLBY_5_1, 0, {7000, 48000}},
     59 	{NULL, AUMODE_PLAY, AUDIO_ENCODING_SLINEAR_LE, 32, 32, 6, AUFMT_DOLBY_5_1, 0, {7000, 48000}},
     60 };
     61 
     62 
     63 /* auixp structures; used to record alloced DMA space */
     64 struct auixp_dma {
     65 	/* bus mappings */
     66 	bus_dmamap_t		 map;
     67 	caddr_t			 addr;
     68 	bus_dma_segment_t	 segs[1];
     69 	int			 nsegs;
     70 	size_t			 size;
     71 
     72 	/* audio feeder */
     73 	void			 (*intr)(void *);	/* function to call when there is space */
     74 	void			*intrarg;
     75 
     76 	/* status and setup bits */
     77 	int			 running;
     78 	uint32_t		 linkptr;
     79 	uint32_t		 dma_enable_bit;
     80 
     81 	/* linked list of all mapped area's */
     82 	SLIST_ENTRY(auixp_dma)	 dma_chain;
     83 };
     84 
     85 
     86 struct auixp_codec {
     87 	struct auixp_softc	*sc;
     88 
     89 	int			 present;
     90 	int			 codec_nr;
     91 
     92 	struct ac97_codec_if	*codec_if;
     93 	struct ac97_host_if	 host_if;
     94 	enum ac97_host_flags	 codec_flags;
     95 };
     96 
     97 
     98 struct auixp_softc {
     99 	struct device		sc_dev;
    100 
    101 	/* card id */
    102 	int			type;
    103 	int			delay1, delay2;		/* nessisary? */
    104 
    105 	/* card properties */
    106 	int			has_4ch, has_6ch, is_fixed, has_spdif;
    107 
    108 	/* bus tags */
    109 	bus_space_tag_t		sc_iot;
    110 	bus_space_handle_t	sc_ioh;
    111 	bus_addr_t		sc_iob;
    112 	bus_size_t		sc_ios;
    113 
    114 	pcitag_t		sc_tag;
    115 	pci_chipset_tag_t	sc_pct;
    116 
    117 	bus_dma_tag_t		sc_dmat;
    118 
    119 	/* interrupts */
    120 	void			*sc_ih;
    121 
    122 	/* DMA business */
    123 	struct auixp_dma	*sc_output_dma;		/* contains dma-safe chain */
    124 	struct auixp_dma	*sc_input_dma;
    125 
    126 	/* list of allocated DMA pieces */
    127 	SLIST_HEAD(auixp_dma_list, auixp_dma) sc_dma_list;
    128 
    129 	/* audio formats supported */
    130 	struct audio_format sc_formats[AUIXP_NFORMATS];
    131 	struct audio_encoding_set *sc_encodings;
    132 
    133 	/* codecs */
    134 	int			sc_num_codecs;
    135 	struct auixp_codec	sc_codec[ATI_IXP_CODECS];
    136 	int			sc_codec_not_ready_bits;
    137 
    138 	/* last set audio parameters */
    139 	struct audio_params	sc_play_params;
    140 	struct audio_params	sc_rec_params;
    141 
    142 	/* suspend/resume */
    143 	void			*powerhook;
    144 	u_int16_t		*savemem;
    145 };
    146 
    147 
    148